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Finding the Fourth Proportional to 575.04, 793.78 and 353.90

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Solution

The fourth proportional to 575.04, 793.78 and 353.90 is: 488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.04 : 793.78 = 353.90 : x
  2. Step 2: Convert to fraction form
    575.04/793.78 = 353.90/x
  3. Step 3: Cross multiply
    575.04x = 793.78 × 353.90
  4. Step 4: Simplify right side
    575.04x = 280,918.74
  5. Step 5: Solve for x
    x = 280,918.74/575.04
  6. Step 6: Final answer
    x = 488.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.